Namibia country information

Common names: Blaumaul, Jac, Jac
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: of no interest | Ref: Okeyo, D.O., 2005
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Ranges from Walvis Bay southward (Ref. 4313). Specimen(s) held at the MFMR (Ref. 27121). Commonly caught with bottom trawls as a bycatch of the hake fishery (Ref. 36731).
National Checklist:
Country Information: httpss://www.cia.gov/library/publications/resources/the-world-factbook/geos/wa.html
National Fisheries Authority: https://www.benefit.org.na/
Occurrences: Occurrences Point map
Main Ref: Bianchi, G., K.E. Carpenter, J.-P. Roux, F.J. Molloy, D. Boyer and H.J. Boyer, 1999
National Database:

Classification / Names

Actinopterygii (ray-finned fishes) > Scorpaeniformes (Scorpionfishes and flatheads) > Sebastidae (Rockfishes, rockcods and thornyheads) > Sebastinae
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL

Common names from other countries

Sébaste chèvre, Gallineta, Bluemouth rockfish, ... more

Main reference

Eschmeyer, W.N. and L.J. Dempster. 1990. (Ref. 4510)
References | Biblio | Coordinator | Collaborators

Size / Weight / Age

Max length : 50.0 cm TL male/unsexed; (Ref. 89108); common length : 25.0 cm TL male/unsexed; (Ref. 4510); max. published weight: 1.6 kg (Ref. 40637); max. reported age: 43 years (Ref. 41452)

Length at first maturity
L_m 32.0 range ? - ? cm

Environment

Marine; bathydemersal; depth range 50 - 1100 m (Ref. 41452), usually 150 - 600 m (Ref. 84778)

Climate / Range

Deep-water, preferred 22°C (Ref. 107945); 70°N - 46°S

Distribution

Western Atlantic: Nova Scotia, Canada to Venezuela. Eastern Atlantic: Iceland (Ref. 12462) and Norway to the Mediterranean and the Gulf of Guinea, including Madeira, the Azores, and the Canary Islands; also Walvis Bay, Namibia to Natal, South Africa (Ref. 4313).
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

Dorsal spines (total): 12; Dorsal soft rays (total): 12-13; Anal spines: 3; Anal soft rays: 5. Pinkish with faint dusky bars; Y-shaped dark bar between soft dorsal and anal fins (Ref. 4313).

Adults are found in soft bottom areas of the continental shelf and upper slope. They feed on both benthic and pelagic organisms (crustaceans, fishes, cephalopods, and echinoderms) (Ref. 4570). The reproductive mode is a zygoparous form of oviparity, intermediate between oviparity and viviparity (Ref. 36265, 79712). Larvae and juveniles are pelagic (Ref. 4570). Anterolateral glandular grooves with venom gland (Ref. 57406). Sold fresh (Ref. 27121).

IUCN Red List Status (Ref. 115185)

Least Concern (LC)

Threat to humans

Venomous (Ref. 57406)

Human uses

Fisheries: commercial

More information

Countries
FAO areas
Ecosystems
Occurrences
Introductions
Stocks
Ecology
Diet
Food items
Food consumption
Ration

Common names
Synonyms
Metabolism
Predators
Ecotoxicology
Reproduction
Maturity
Spawning
Fecundity
Eggs
Egg development

Age/Size
Growth
Length-weight
Length-length
Length-frequencies
Morphometrics
Morphology
Larvae
Larval dynamics
Recruitment
Abundance

References
Aquaculture
Aquaculture profile
Strains
Genetics
Allele frequencies
Heritability
Diseases
Processing
Mass conversion

Collaborators
Pictures
Stamps, Coins
Sounds
Ciguatera
Speed
Swim. type
Gill area
Otoliths
Brains
Vision

Tools

Special reports

Check for Aquarium maintenance | Check for Species Fact Sheets | Check for Aquaculture Fact Sheets

Download XML

Summary page | Point data | Common names | Photos

Internet sources

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805)
PD₅₀ = 0.5020 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Trophic Level (Ref. 69278)
3.5 ±0.0 se; Based on diet studies.

Resilience (Ref. 69278)
Very Low, minimum population doubling time more than 14 years (K=0.06-0.2; tm=13-16; tmax=43)

Vulnerability (Ref. 59153)
Moderate to high vulnerability (54 of 100)

Price category (Ref. 80766)
Low

Helicolenus dactylopterus (Delaroche, 1809)